Hydrogen Tetrachloroaurate(III)
Industrial Applications
Hydrogen Tetrachloroaurate(III) is an important gold compound widely used as a precursor in the preparation of other gold salts, complexes, and metallic gold. It is a key source of gold in electroplating processes, where it is used to deposit thin, uniform gold coatings for electronics, connectors, and corrosion-resistant surfaces. In catalysis, Hydrogen Tetrachloroaurate(III) serves as a starting material for the synthesis of supported gold catalysts used in oxidation and selective chemical transformations. It is also utilized in materials science and nanotechnology for the preparation of gold nanoparticles and functional gold-containing materials. Additionally, it plays a role in laboratory research and chemical synthesis involving gold coordination chemistry.
Physical Properties
Hydrogen Tetrachloroaurate(III) typically appears as a yellow to orange crystalline solid or as a solution when dissolved in water or alcohols. It is highly soluble in water, forming acidic solutions due to the presence of hydrogen ions. The compound contains gold in the +3 oxidation state coordinated to four chloride ligands. Hydrogen Tetrachloroaurate(III) is hygroscopic and sensitive to light and reducing agents, which can cause gradual reduction to metallic gold. Its solutions are conductive and chemically reactive, making them suitable for electrochemical and synthetic applications.
Grade
- 50%
Other Names
- Tetrachloroaurate
- Tetrachloroauric(III) acid
- Chloroauric acid
- Gold chloride yellow
- Chloroauric acid hydrate
- Hydrogen tetrachloroaurate hydrate
- Gold(III) chloride hydrate
Form
- Orange-Yellow Solution
- Orange-Yellow Hydrate
Abbreviations
- H[AuCl4] - nH2O
- AuCl4(H3)
- H[AuCl4]
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